package test;

public class Calculator {
	/** Main method */
	public static void main(String[] args) {
		// Check number of strings passed
		if (args.length != 3) {
			System.out.println("Usage: java Calculator operand1 operator operand2");
			System.exit(0);
		}
	
		// The result of the operation
		int result = 0;
		
		// Determine the operator
		switch (args[1].charAt(0)) 
		{
			case '+': result = Integer.parseInt(args[0]) + Integer.parseInt(args[2]);
				break;
			case '-': result = Integer.parseInt(args[0]) - Integer.parseInt(args[2]);
				break;
			case '*': result = Integer.parseInt(args[0]) * Integer.parseInt(args[2]);
				break;	
			case '/': result = Integer.parseInt(args[0]) / Integer.parseInt(args[2]);
		}
	
		// Display result
		System.out.println( args[0] + ' ' + args[1] + ' ' + args[2] + " = " + result);
	}
}


